package Test;/*package Test;

public class Main11 {

}*/

import java.util.Scanner;

public class Main11 {
    public static void main(String[] args) {
        Scanner aka = new Scanner(System.in);
        String str = aka.nextLine();
        replace(str);
    }

    public static void replace(String str) {
        for (int i = 0; i < str.length(); i++) {
            String str1 = String.valueOf(str.charAt(i));
            if (str1.equals(" ")) {
                str1 = "%20";
            }
            System.out.print(str1);

        }
    }

}
